To easily gain money, go on a lot of walks and get as many question marks as possible along the way. Then, go to the second hand store and sell all the items you do not want or your dogs you do not like. Some items are less then a dollar, but the amount adds up if you continue doing this. Additionally, when going out for walks, it is best to feed and give your dog water just before you go. By doing this, instead of your dog finding trash, they will be much more likely to find presents. You will see a white box with red ribbons around it. Try walking slow because you cannot go backwards. Touch it with the stylus. Your dog will bring it to you. These items are the ones that are worth more. The tri-color ribbon is worth ten dollars, and the Moai Statue is worth one hundred dollars.